<template>
    <el-card>
        <el-form :model="ruleForm" status-icon :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
            <el-form-item label="当前密码" prop="oldPass">
                <el-input v-model.number="ruleForm.oldPass"></el-input>
            </el-form-item>
            <el-form-item label="新密码" prop="pass">
                <el-input type="password" v-model="ruleForm.pass" autocomplete="off"></el-input>
            </el-form-item>
            <el-form-item label="确认新密码" prop="checkPass">
                <el-input type="password" v-model="ruleForm.checkPass" autocomplete="off"></el-input>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="submitForm('ruleForm')">提交</el-button>
                <el-button @click="resetForm('ruleForm')">重置</el-button>
            </el-form-item>
        </el-form>
    </el-card>
</template>
<script>
  export default {
    data() {
      var checkOldPass = (rule, value, callback) => {
        if (!value) {
          return callback(new Error('当前密码不能为空'))
        }
        setTimeout(() => {
          if (value !== 1) {
            callback(new Error('请输入正确密码'))
          }
        }, 1000)
      }
      var validatePass = (rule, value, callback) => {
        if (value === '') {
          callback(new Error('请输入密码'))
        } else {
          if (this.ruleForm.checkPass !== '') {
            this.$refs.ruleForm.validateField('checkPass')
          }
          callback()
        }
      }
      var validatePass2 = (rule, value, callback) => {
        if (value === '') {
          callback(new Error('请再次输入密码'))
        } else if (value !== this.ruleForm.pass) {
          callback(new Error('两次输入密码不一致!'))
        } else {
          callback()
        }
      }
      return {
        ruleForm: {
          pass: '',
          checkPass: '',
          oldPass: ''
        },
        rules: {
          pass: [
            { validator: validatePass, trigger: 'blur' }
          ],
          checkPass: [
            { validator: validatePass2, trigger: 'blur' }
          ],
          oldPass: [
            { validator: checkOldPass, trigger: 'blur' }
          ]
        }
      }
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate((valid) => {
          if (valid) {
            alert('submit!')
          } else {
            console.log('error submit!!')
            return false
          }
        })
      },
      resetForm(formName) {
        this.$refs[formName].resetFields()
      }
    }
}
</script>    
